Process for producing sticky polymers

Abstract

An improvement in the process for producing sticky polymers in a fluidized bed reactor catalyzed by a transition metal catalyst in the presence of an inert particulate material prone to generate excessive negative charges in said reactor, by conducting the process in the presence of a composition comprising a mixture of an alcohol phosphate salt and a quarternary ammonium salt, which is dissolved in a suitable solvent.

What is claimed is: 
     
       1. In a process for producing sticky polymers in a fluidized bed reactor in which comonomers are polymerized by a transition metal catalyst in the presence of an inert particulate material prone to generate excessive negative charges in said reactor, the improvement comprising conducting said process in the presence of a composition comprising a mixture of an alcohol phosphate salt and a quarternary ammonium salt, said mixture being dissolved in a suitable solvent, said mixture being employed in an amount sufficient to substantially neutralize said negative static charge in said reactor. 
     
     
       2. The improvement according to claim 1 wherein said composition is employed in an amount of about 0.05% to about 0.25% based on the weight of resin. 
     
     
       3. The improvement according to claim 1 wherein said composition is employed in an amount of about 0.1% to about 0.2% based on the weight of resin. 
     
     
       4. The improvement according to claim 1 wherein the amount of alcohol phosphate salt present in said composition is about 1% to about 10% based on the weight of the composition. 
     
     
       5. The improvement according to claim 1 wherein the amount of quarternary ammonium salt present in said composition is about 1% to about 15% based on the weight of the composition. 
     
     
       6. The improvement according to claim 1 wherein the amount of solvent present in said composition is about 8% to about 98% based on the weight of the composition. 
     
     
       7. The improvement according to claim 1 wherein said sticky polymers are: a. ethylene propylene rubbers;   b. ethylene propylene diene termonomer rubbers;   c. polybutadiene rubbers; and   d. high ethylene content propylene ethylene block copolymers.   
     
     
       8. The improvement according to claim 7 wherein said ethylene propylene diene termonomers are ethylene/propylene/ethylidenenorbornene termonomers. 
     
     
       9. The improvement according to claim 7 wherein said ethylene propylene diene termonomers are ethylene/propylene/hexadiene termonomers.